diff --git a/hwe/_admin1.php b/hwe/_admin1.php
index 1aadaed6..86a7aa6d 100644
--- a/hwe/_admin1.php
+++ b/hwe/_admin1.php
@@ -28,7 +28,6 @@ if($session->userGrade < 5) {
 }
 
 $db = DB::db();
-$connect=$db->get();
 
 $admin = getAdmin();
 ?>
diff --git a/hwe/_admin1_submit.php b/hwe/_admin1_submit.php
index cf4143a7..7c91ce3b 100644
--- a/hwe/_admin1_submit.php
+++ b/hwe/_admin1_submit.php
@@ -34,7 +34,6 @@ extractMissingPostToGlobals();
 
 $db = DB::db();
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 $admin = getAdmin();
 
diff --git a/hwe/_admin2_submit.php b/hwe/_admin2_submit.php
index 64ef0290..ec389ac0 100644
--- a/hwe/_admin2_submit.php
+++ b/hwe/_admin2_submit.php
@@ -26,7 +26,6 @@ if(!$generalID){
 
 $db = DB::db();
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 $src = MessageTarget::buildQuick($session->generalID);
 
diff --git a/hwe/_admin5_submit.php b/hwe/_admin5_submit.php
index 8a4a56ba..68789746 100644
--- a/hwe/_admin5_submit.php
+++ b/hwe/_admin5_submit.php
@@ -19,7 +19,6 @@ if($session->userGrade < 5) {
 }
 
 $db = DB::db();
-$connect=$db->get();
 
 switch($btn) {
     case "국가변경":
diff --git a/hwe/a_genList.php b/hwe/a_genList.php
index 64712c02..36fa50dd 100644
--- a/hwe/a_genList.php
+++ b/hwe/a_genList.php
@@ -12,13 +12,10 @@ $userID = Session::getUserID();
 
 $db = DB::db();
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 increaseRefresh("장수일람", 2);
 
-$query = "select con,turntime from general where owner='{$userID}'";
-$result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect), "");
-$me = MYDB_fetch_array($result);
+$me = $db->queryFirstRow('SELECT con,turntime FROM general WHERE owner = %i', $userID);
 
 $con = checkLimit($me['con']);
 if ($con >= 2) {
diff --git a/hwe/a_traffic.php b/hwe/a_traffic.php
index 4386954a..2f429b59 100644
--- a/hwe/a_traffic.php
+++ b/hwe/a_traffic.php
@@ -6,7 +6,6 @@ include "func.php";
 
 $db = DB::db();
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 increaseRefresh("갱신정보", 2);
 
diff --git a/hwe/b_myGenInfo.php b/hwe/b_myGenInfo.php
index acdf650f..cc976b84 100644
--- a/hwe/b_myGenInfo.php
+++ b/hwe/b_myGenInfo.php
@@ -15,13 +15,10 @@ $userID = Session::getUserID();
 
 $db = DB::db();
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 increaseRefresh("세력장수", 1);
 
-$query = "select no,nation,level from general where owner='{$userID}'";
-$result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
-$me = MYDB_fetch_array($result);
+$me = $db->queryFirstRow('SELECT no,nation,level from general where owner=%i', $userID);
 
 if($me['level'] == 0) {
     echo "재야입니다.";
diff --git a/hwe/b_myPage.php b/hwe/b_myPage.php
index e72171e4..374168a4 100644
--- a/hwe/b_myPage.php
+++ b/hwe/b_myPage.php
@@ -24,13 +24,10 @@ $userID = Session::getUserID();
 
 $db = DB::db();
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 increaseRefresh("내정보", 1);
 
-$query = "select no,npc,mode,tnmt,myset,train,atmos from general where owner='{$userID}'";
-$result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect), "");
-$me = MYDB_fetch_array($result);
+$me = $db->queryFirstRow('SELECT no,npc,mode,tnmt,myset,train,atmos from general WHERE owner = %i', $userID);
 
 
 if ($me['myset'] > 0) {
diff --git a/hwe/b_troop.php b/hwe/b_troop.php
index b3040501..b314a6ef 100644
--- a/hwe/b_troop.php
+++ b/hwe/b_troop.php
@@ -8,7 +8,6 @@ $session = Session::requireGameLogin()->setReadOnly();
 $userID = Session::getUserID();
 
 $db = DB::db();
-$connect=$db->get();
 
 increaseRefresh("부대편성", 1);
 
diff --git a/hwe/c_vote.php b/hwe/c_vote.php
index 58bdac66..e5737202 100644
--- a/hwe/c_vote.php
+++ b/hwe/c_vote.php
@@ -19,18 +19,17 @@ $isVoteAdmin |= $session->userGrade >= 5;
 
 $db = DB::db();
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 $admin = $gameStor->getValues(['develcost', 'cost', 'vote_title', 'vote', 'votecomment']);
 
-$query = "select no,vote,name,nation,horse,weap,book,item,npc from general where owner='{$userID}'";
-$result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
-$me = MYDB_fetch_array($result);
+$me = $db->queryFirstRow('SELECT no,vote,name,nation,horse,weap,book,item,npc from general where owner=%i', $userID);
 
 if($btn == "투표" && $me['vote'] == 0 && $sel > 0) {
     $develcost = $admin['develcost'] * 5;
-    $query = "update general set gold=gold+{$develcost},vote='{$sel}' where owner='{$userID}'";
-    MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
+    $db->update('general', [
+        'gold'=>$db->sqleval('gold + %i', $develcost),
+        'vote'=>$sel
+    ], 'owner=%i', $userID);
 
     $log = [];
     $log = uniqueItem($me, $log, 1);
diff --git a/hwe/func_legacy.php b/hwe/func_legacy.php
index 625185ee..11ad5e23 100644
--- a/hwe/func_legacy.php
+++ b/hwe/func_legacy.php
@@ -109,19 +109,13 @@ function printCitiesBasedOnDistance(int $cityNo, int $maxDistance=1) {
 function info($type=0) {
     $db = DB::db();
     $gameStor = KVStorage::getStorage($db, 'game_env');
-    $connect=$db->get();
 
     $admin = $gameStor->getValues(['year', 'month', 'turnterm', 'maxgeneral']);
 
     $termtype = "{$admin['turnterm']}분 턴";
 
-    $query = "select no from general where npc<2";
-    $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
-    $gencount = MYDB_num_rows($result);
-
-    $query = "select no from general where npc>=2";
-    $result = MYDB_query($query, $connect) or Error(__LINE__.MYDB_error($connect),"");
-    $npccount = MYDB_num_rows($result);
+    $gencount = $db->queryFirstField('SELECT count(no) FROM general WHERE npc < 2');
+    $npccount = $db->queryFirstField('SELECT count(no) FROM general WHERE npc >= 2');
 
     switch($type) {
     case 0:
diff --git a/hwe/j_map_history.php b/hwe/j_map_history.php
index c2c24141..9ca65a71 100644
--- a/hwe/j_map_history.php
+++ b/hwe/j_map_history.php
@@ -33,7 +33,6 @@ if(!$serverID){
 $session = Session::requireGameLogin([])->setReadOnly();
 
 $db = DB::db();
-$connect=$db->get();
 
 $map = $db->queryFirstField('SELECT map FROM history WHERE server_id=%s AND year=%i AND month=%i', $serverID, $year, $month);
 
diff --git a/hwe/join.php b/hwe/join.php
index be3f1bf8..4d092f24 100644
--- a/hwe/join.php
+++ b/hwe/join.php
@@ -24,7 +24,6 @@ if (!$member) {
 
 $db = DB::db();
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 ?>
 <!DOCTYPE html>
@@ -69,9 +68,7 @@ echo Json::encode((object)$charInfoText);
 <?php
 $admin = $gameStor->getValues(['show_img_level','maxgeneral']);
 
-$query = "select no from general where npc<2";
-$result = MYDB_query($query, $connect) or Error("join ".MYDB_error($connect), "");
-$gencount = MYDB_num_rows($result);
+$gencount = $db->queryFirstField('SELECT count(no) FROM general WHERE npc<2');
 
 if ($gencount >= $admin['maxgeneral']) {
     echo "<script>alert('더 이상 등록할 수 없습니다.');</script>";
diff --git a/hwe/preprocessing.php b/hwe/preprocessing.php
index f5505d8c..5bf2a194 100644
--- a/hwe/preprocessing.php
+++ b/hwe/preprocessing.php
@@ -8,7 +8,6 @@ $session = Session::requireGameLogin()->setReadOnly();
 $userID = Session::getUserID();
 
 $db = DB::db();
-$connect=$db->get();
 
 $turn = Util::getReq('turn', 'array_int');
 $sel = Util::getReq('sel', 'int');
diff --git a/hwe/turn.php b/hwe/turn.php
index 450783cd..4891f4a8 100644
--- a/hwe/turn.php
+++ b/hwe/turn.php
@@ -18,7 +18,6 @@ $userID = Session::getUserID();
 $db = DB::db();
 $generalID = $session->generalID;
 $gameStor = KVStorage::getStorage($db, 'game_env');
-$connect=$db->get();
 
 increaseRefresh("턴반복", 1);